Turret.



P. VOGEL.

TURBET. APPLICATION FILED NOV. 14, 1911.

Patented Sept. 10, 1912.

04%;? asses COLUMBIA PLANOGRAPH (20., WASHINGTON D c PAUL VOGEL, orCOLOGNE-DEUTZQGERMANY.

TURRET.

Specification of Letters Patent.

Patented Sept. 10;

Application filed November 14,1911. Serial No. 660,212.

To (121 whom it may concern:

dom of Prussia, German Empire, have invented new and useful Improvements1n 'Iurrets, of which the following is a full,1

clear, and exact specification.

My invention relates to turrets for use 1n lathes and analogousmachines, and more especially to such turrets as arein the well knownmanner first held stationary in the lathe or other machine with varioustools ing rotated by the lathe or other machine, 1

whereupon the turret is moved back again, rotated on its axis intoanother angular position, and secured therein by means. of a screw orotherwise, to be again advanced toward the rotating piece of work so asto cause another tool to operate thereon. The means for securing thetools in turrets of this well known class have heretofore generallyembodied one or the other of the following arrangements. According toone system smooth openings extending diametrically through the turrethave been provided for receiving the shanks of tools to be held therein.This arrangement has generally been applied in the case of turretsconsisting of a solid body of either round outer shape or of polygonalshape with face portions of equal or unequal lengths. According toanother system, usually employed in connection with solid polygonalturrets having outer faces of either equal or unequal lengths, threadedopenings have been formed therein on the outside for screwing onsuitable tools from without. According to a third system screw openingshave been made to extend outward through the com- I paratively thin sidewalls of the turret from 1 the first and second systems above referredBe it known that 1, PAUL VoeEL,-a sub ject of the German Emperor, andresident. of Rhein Allee, Cologne-Deutz,inthe Kingto have been"combined, but it has not heretofore been possible to combine therewithalso the third system. This was due to the fact that in the case ofpolygonal turrets, no matter whether the side faces were equal orunequal, the available space was insuflicient, whereas when providingsuchthin side walls as would be required for securing flanged tools fromthe inside there was not a sufficient depth or thic'knessof material toallow of providing the other open- .ings, and vice versa.

The object of my present invention is to overcome these difficulties andto provide a turret which will be adapted for securing thereon shanktools as well as flanged tools, and either" from within or without, orboth, as may be desired.

To this end my invention consists in a turret of polygonal shape withouter side faces of varying lengths having an inner cavity so disposedin the turret, and various kinds of openings so provided in the sidewalls, as to enable any and all these systems of fastening to be appliedeither severally or in combination, as may be de sired.

In the drawing Figure 1 is a plan View, partly in section. and Fig. 2 asectional view, on the line 1l: of Fig. 1, with parts bro-ken away, of aturret embodying my invention. Fig. 3 is a plan view similar to Fig. 1,showing various tools secured to the turret in different ways.

As shown in Figs. 1 and 2 the turret n is of polygonal .shape withalternately long and short outer side faces and an inner, cavity 0 soshaped and disposed relatively thereto as to provideside walls of narrowcross section at the long outer side faces 2, 4, 6, andside walls ofbroadcrosssection at the short outer side faces 1, 3, "5 Openings atextending through the broad section side walls 1, 3 and 5 are providedfor receiving shank tools, while centering openings 5 and other openings0 for receiving flanged tools to be secured from within the cavity ofthe turret extend through the narrow section side walls 2, 4t and 6.Between the openings seven tools are secured to a turret of the kindillustrated in Figs. 1 and 2. The tools 6, f and g are shank tools(drills). The two tools h are intended for operating on the portion h ofthe piece of work m, and they are each secured both from within andwithout the turret. i is a tool secured from within and k another toolsecured in the same way. Other tools might be secured by means of theouter screws alone entering the openings cl.

What I claim is 1. In a turret of polygonal shape with alternately longand short outer side faces, and providing an inner cavity, wall portionsof narrow cross section at the long side faces and other wall portionsof broad cross section at the short side faces, said wall por tionsbeing provided with tool-receiving openings in the short side faces andwith other tool-receiving openings in the long side faces.

2. In a turret of polygonal shape with alternately long and short outerside faces and providing an inner cavity, wall portions of narrow crosssection at the long side faces and other wall portions of broad crosssection at the short side faces, said wall portions being provided withtool receiving openings in the short side faces, with other too-lreceiving openings extending through the side wall portions at the longside faces, and with openings extending from the long side faces partlyinto the wall portions of broad cross section. I

3. In a turret of polygonal shape with alternately long and short outerside faces and providing an inner cavity, wall portions of narrowcross-section at the long side faces and other wall portion of broadcross section at the short side faces, said wall portions being providedwith tool receiving openings in the short side faces, with two othertool receiving openings and a centering opening in each of the side wallportions of the long side faces, and with threaded openings extendingfrom the long side faces partly into the wall portions of broad crosssection.

4:- In a turret of polygonal shape with alternately long and short outerside faces and providing an inner cavity, wall portions of narrowcross-section at the long side faces and other wall portions of broadcross section at the short side faces, said wall portions being providedwith tool receiving openings in the short side faces, extending throughthe corresponding wall portions for receiving shank tools, with twoother tool receiving openings and a centering opening for receivingflanged tools and extending through each of the side wall portions atthe long side faces, and with threaded openings extending from the longside faces partly into the wall portions of broad cross section.

5. In a turret of polygonal shape with alternately long and short outerside faces and providing an inner, equilateral, polygonal cavity, wallportions of narrow cross section at the long side faces and other wallportions of broad cross section at the short side faces, said wallportions being provided with tool receiving openings in the short sidefaces and extending through the corresponding wall portions forreceiving shank tools, with two other tool receiving openings and acentering opening extending through each of the wall portions at thelong side faces for receiving flanged tools, and with threaded openingsextending from the long side faces partly into the wall portions ofbroad cross section.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses.

PAUL VOGEL.

FREDK. F. SGI-IUETZ.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

